Hi, thanks for the answer !
Things changed, i'm now on 9.2 after a downgrading, currently installing rxtools on my o3ds.
So now i can use ram injection, yes ?
Yes, you're able to do pretty much everything now. You can run romhacks (though there are very few for New Leaf), you can give yourself items in-game via the NTR Debugger and NTR CFW, you can use the exploited browser to use SpiderHax (which is outdated and not worked on, but still works) aka ram hacks. Unfortunately nobody has developed a program like the Pokemon hax with GUI and all, but I wanted to get around to it at some point.